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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In one dimensional flow, the flow

Takes place in one direction
Takes place in curve
Is steady and uniform
Takes place in straight line

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Hydraulics and Fluid Mechanics in ME
The highest efficiency is obtained with a channel of __________ section.

Rectangular
Trapezoidal
Square
Circular

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Hydraulics and Fluid Mechanics in ME
A pitot tube is used to measure the

Pressure difference between two points in a pipe
Discharge through a pipe
Velocity of flow at the required point in a pipe
Total pressure of liquid flowing in a pipe

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit discharge of wheel is

0.25 m3/s
0.5 m3/s
1.5 m3/s
2.5 m3/s

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Hydraulics and Fluid Mechanics in ME
The flow rate in gear pump

Decreases with increase in pressure
More or less remains constant with increase in pressure
Unpredictable
Increases with increase in pressure

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Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine with increase in unit speed

First increases and then decreases
Increases
Remain unaffected
Decreases

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